DK1276885T3 - Trophic conversion of obligate phototrophic algae by metabolic engineering - Google Patents

Trophic conversion of obligate phototrophic algae by metabolic engineering

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Publication number
DK1276885T3
DK1276885T3 DK01927226T DK01927226T DK1276885T3 DK 1276885 T3 DK1276885 T3 DK 1276885T3 DK 01927226 T DK01927226 T DK 01927226T DK 01927226 T DK01927226 T DK 01927226T DK 1276885 T3 DK1276885 T3 DK 1276885T3
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Denmark
Prior art keywords
glucose
obligate
metabolic engineering
tricornutum
photosynthetically
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DK01927226T
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Danish (da)
Inventor
Kirk E Apt
Thomas F C Allnutt
David J Kyle
James C Lippmeier
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Martek Biosciences Corp
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Publication of DK1276885T3 publication Critical patent/DK1276885T3/en

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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/82Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
    • C12N15/8201Methods for introducing genetic material into plant cells, e.g. DNA, RNA, stable or transient incorporation, tissue culture methods adapted for transformation
    • C12N15/8209Selection, visualisation of transformants, reporter constructs, e.g. antibiotic resistance markers
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/12Unicellular algae; Culture media therefor
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/65Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression using markers
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79Vectors or expression systems specially adapted for eukaryotic hosts
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/82Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
    • C12N15/8201Methods for introducing genetic material into plant cells, e.g. DNA, RNA, stable or transient incorporation, tissue culture methods adapted for transformation
    • C12N15/8206Methods for introducing genetic material into plant cells, e.g. DNA, RNA, stable or transient incorporation, tissue culture methods adapted for transformation by physical or chemical, i.e. non-biological, means, e.g. electroporation, PEG mediated
    • C12N15/8207Methods for introducing genetic material into plant cells, e.g. DNA, RNA, stable or transient incorporation, tissue culture methods adapted for transformation by physical or chemical, i.e. non-biological, means, e.g. electroporation, PEG mediated by mechanical means, e.g. microinjection, particle bombardment, silicon whiskers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00Chemistry: molecular biology and microbiology
    • Y10S435/8215Microorganisms
    • Y10S435/946Microorganisms using algae

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Zoology (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Plant Pathology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Cell Biology (AREA)
  • Medicinal Chemistry (AREA)
  • Botany (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Virology (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Cultivation Of Seaweed (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Photovoltaic Devices (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Medicines Containing Plant Substances (AREA)

Abstract

Most microalgae are obligate photoautotrophs and their growth is strictly dependent on the generation of photosynthetically-derived energy. In this study it is shown that the microalga Phaeodaclylurn tricornutum can be engineered to import glucose and grow in the dark through the introduction of genes encoding glucose transporters. Both the human and Chlorella kessleri glucose transporters facilitated the uptake of glucose by P. tricornutum, allowing the cells to metabolize exogenous organic carbon and thrive, independent of light. This is the first successful trophic conversion of an obligate photoautotroph through metabolic engineering, and it demonstrates that methods of cell nourishment can be fundamentally altered with the introduction of a single gene. Since strains transformed with the glucose transport genes are able to grow non-photosynthetically, they can be exploited for the analysis of photosynthetic processes through mutant generation and characterization. Finally, this work also represents critical progress toward large-scale commercial exploitation of obligate phototrophic algae through the use of microbial fermentation technology, eliminating significant limitations resulting from light-dependent growth.
DK01927226T 2000-04-21 2001-04-20 Trophic conversion of obligate phototrophic algae by metabolic engineering DK1276885T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19874200P 2000-04-21 2000-04-21
PCT/US2001/012789 WO2001081603A2 (en) 2000-04-21 2001-04-20 Trophic conversion of obligate phototrophic algae through metabolic engineering

Publications (1)

Publication Number Publication Date
DK1276885T3 true DK1276885T3 (en) 2007-10-15

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DK01927226T DK1276885T3 (en) 2000-04-21 2001-04-20 Trophic conversion of obligate phototrophic algae by metabolic engineering

Country Status (12)

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US (3) US7939710B1 (en)
EP (1) EP1276885B1 (en)
JP (1) JP2004500839A (en)
AT (1) ATE373098T1 (en)
AU (2) AU5369901A (en)
CA (1) CA2404900A1 (en)
CY (1) CY1106934T1 (en)
DE (1) DE60130447T2 (en)
DK (1) DK1276885T3 (en)
ES (1) ES2291312T3 (en)
PT (1) PT1276885E (en)
WO (1) WO2001081603A2 (en)

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Also Published As

Publication number Publication date
ES2291312T3 (en) 2008-03-01
DE60130447D1 (en) 2007-10-25
ATE373098T1 (en) 2007-09-15
JP2004500839A (en) 2004-01-15
AU2001253699B2 (en) 2006-04-27
US7939710B1 (en) 2011-05-10
US20120034653A1 (en) 2012-02-09
US20080138851A1 (en) 2008-06-12
US8008061B2 (en) 2011-08-30
CA2404900A1 (en) 2001-11-01
DE60130447T2 (en) 2008-06-12
AU5369901A (en) 2001-11-07
CY1106934T1 (en) 2012-09-26
EP1276885B1 (en) 2007-09-12
EP1276885A2 (en) 2003-01-22
WO2001081603A2 (en) 2001-11-01
WO2001081603A3 (en) 2002-05-23
PT1276885E (en) 2007-10-26

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